The lights were burned out in both the clock and vent controls of my 2002 Honda Accord EX. If you can find the right replacement bulbs from an online source like Honda Parts Now, Majestic Honda or Honda Village none of my local Honda dealers had these lights they are easy to replace. Just be sure to use plastic pry bars that are soft enough to break before you damage the faceplates or covers.

The clock backlight is part of the "Switch" diagram in Honda parts. The vent control lights are part of the "Heater Control" Honda parts diagram.

You can also find the lamp at online electronic parts sellers (the lamp is the actual bulb without the neowedge holder). The lamps are usually 14 volts, .040 to .100 amps and it's not hard to replace the new bulb in the old holder, so long as you don't mind working with very tiny parts.

The vent control light bulb is found in the Honda Accord parts diagram. Go to somewhere like Hondapartsnow.com, find your car model, then "Electrical / Exhaust / Heater / Fuel", then "Switch", then (on the 2000 Accord 4DR, LX that I tried), it's part #1 = 35505S84B02 or 35505S84N01. I think they're 2 different manufacturer's but the either one will fit.